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Göteborgs universitets publikationer

Sport-specific association between exercise loading and the density, geometry, and microstructure of weight-bearing bone in young adult men.

Författare och institution:
Martin Nilsson (Centre for Bone and Arthritis Research); Claes Ohlsson (Centre for Bone and Arthritis Research & Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition); Dan Mellström (Centre for Bone and Arthritis Research); Mattias Lorentzon (Centre for Bone and Arthritis Research)
Publicerad i:
Osteoporosis International , 24 ( 5 ) s. 1613-1622
Artikel, refereegranskad vetenskaplig
Sammanfattning (abstract):
In this population-based study of 24-year-old men, we have investigated the association between sport-specific exercise loading and different bone parameters. We reveal that the association between exercise loading and bone parameters is sport-specific, indicating that nonspecific resistance exercise does not impact bone density, geometry, or microstructure in young men. INTRODUCTION: In this cross-sectional study, the association between nonspecific resistive exercise and areal and volumetric bone density, bone geometry, or bone microstructure was investigated in young adult men. METHODS: A total of 184 male athletes, 24.0 ± 0.6 years of age (mean ± SD), representing nonspecific resistive exercise and soccer (proportion of recreational athletes, 93.4 and 7.7 %, respectively), and 177 nonathletic age-matched controls were measured with dual-energy X-ray absorptiometry. Radius and tibia were measured by peripheral quantitative computed tomography (pQCT) at the diaphysis and by three-dimensional pQCT at the metaphysis. RESULTS: Men in the nonspecific resistive exercise group had higher grip strength(9.1 % or 0.4 SD) and higher lean mass(5.6 % or 0.5 SD) than those in the nonathletic group(p < 0.01 and p < 0.001, respectively). However, men who participated in nonspecific resistive exercise did not have higher bone density or a more favorable bone microstructure or geometry than their nonathletic referents. In contrast, men playing soccer had higher areal bone mineral density (aBMD) at the femoral neck (19.5 % or 1.2 SD) and lumbar spine (12.6 % or 1.0 SD), as well as larger cortical cross-sectional area (16.4 % or 1.1 SD) and higher trabecular bone volume fraction (14.5 % or 0.9 SD), as a result of increased trabecular number (8.7 % or 0.6 SD) and thickness (5.7 % or 0.4 SD) at the tibia than men in the nonathletic group(p < 0.001). CONCLUSIONS: Weight-bearing exercise with impacts from varying directions (playing soccer) is associated with aBMD and volumetric BMD, cortical bone geometry, as well as trabecular microstructure of weight-bearing bone. Nonspecific recreational resistance exercise does not appear to be a strong determinant of bone density, geometry, or microstructure in young adult men.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
Klinisk medicin ->
Endokrinologi och diabetes ->
Klinisk medicin ->
Bone geometry; Bone microstructure; Bone mineral density; Exercise; Men
Postens nummer:
Posten skapad:
2013-01-14 10:30
Posten ändrad:
2013-08-12 11:16

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